Mathematics College

8. A bag contains 50 marbles, 28 red ones and 22 blue ones. A marble is picked at random from
the bag. What is the probability of picking:
a) a red marble?
b) a blue marble?
c) a red marble after a blue marble had been picked first.

Answers

Answer 1

Answer:

56%, 44%, 57%

Step-by-step explanation:

divide number of marbles by 50

Related Questions

ill mark brainlist plss help

Answers

Answer:

C

Step-by-step explanation:

Answer: C: 204 ft

Step-by-step explanation: plz mark me brainliest. 12x17=204

You role a six-sided die. The P(even or odd) is

Answers

Answer:

1/2

Step-by-step explanation:

1/2 is the answer to your question

Can someone help me please I put the picture

Answers

Answer:

x=8ft

Step-by-step explanation:

the triangle was multiplied by 2

3x3=6

4x4=8

The difference of two numbers is 3. Their sum is 13. Find the numbers.

Answers

Answer:

8 and 5

Step-by-step explanation:

Answer:

8 and 5

Step-by-step explanation:

What is the value of y for the point with an x-value of 5?

Answers

Answer:

Y would be 6

Step-by-step explanation:

it's shown in the graph that when you go to the x value of 5 and follow it the only point there is (5,6) so the answer is 6

What's
2/3 + 1/6 =

1/3 + 2/4 =

1/2 -1/4 =

3/8 - 1/3 =



Jeremiah ran for 3/10 of a mile and then walked another 2/5 of a mile. How far did he travel in all?

Elisa has 3/4 cup of flour. She used 3/6 to make cupcakes. How much flour does Elisa have left?

Daniel read 4/5 books and Edgar read 1/2 books. How many more books did Daniel read than Edgar?

Jared drove 2/8 miles to the restaurant. He drove another 1/4 miles to the mall. How many miles did he drive in all?

Answers

Answer:

A. 5/6 B. 5/6 C. 1/4 D. 1/24

Step-by-step explanation:

A. 12+3= 15 = 5

— — —

18. 18. 6

B. 4+6=10= 5

— — —

12. 12. 6

C. 4-2=2 = 1

— — —

8. 8. 4

D. 9-8 = 1

— —

24. 24

5x + 2y =17
3x +2y=13

Answers

1. Y= -5/2x + 17/2 (slope intercept form)
2. Y= -3/2x + 13/2 (slope intercept form)


Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean diameter of 125 millimeters, and a standard deviation of 7
millimeters.
If a random sample of 44 steel bolts is selected, what is the probability that the sample mean would be greater than 127.1 millimeters? Round your
answer to four
decimal places

Answers

Answer:

P(X > 127.1) = 0.0233

Step-by-step explanation:

We are given;

Population mean; μ = 125 mm

Sample mean; x¯ = 127.1 mm

Sample size; n = 44

Standard deviation; σ = 7 mm

Formula for test statistic is;

z = (x¯ - μ)/(σ/√n)

z = (127.1 - 125)/(7/√44)

z = 2.1/1.0553

z = 1.99

From z-table attached;

P(X > 127.1) = P(z > 1.99) = 1 - 0.97670 = 0.0233

Rohail sell 300g of cashew nuts . Gauhar sell 150g more than Rohail. What is the total weight sold?

Answers

Answer:

the total weight sold is 750g

Step-by-step explanation:

300+150=450

450+300 = 750

please mark me as brainliest its beside the rate sign and it looks like a king icon

help pls!!!!!!!!!!!!

Answers

I believe it is A=π(8)2=64π sq.in

It’s A give brainliest to the other person ☝️

Help Me Please...............(2)

Answers

4.6m = -6.899
m = -1.41

Answer:

-0.499

Step-by-step explanation:

Isnt that it? xD

or 1.41

The Polygons are similar. Solve for x

10

9

6

12

Answers

Step-by-step explanation:

[tex] \frac{ - 2 + 7x}{32} = \frac{25}{20} [/tex]

[tex] \frac{ - 2 + 7x}{32} = \frac{5}{4} [/tex]

4(-2+7x) = 5(32)

-8 + 28x = 160

28x = 160+8

28x = 168

x = 168/28

= 42/7

= 6

(2,11) and (-3,6) slope we need to find b and write equations​

Answers

Answer:

Step-by-step explanation:

(2,11)(-3,6)

-3-2/6-11

-5/-5

m=1

y=mx+b

11=1(2)+b

11=2+b

b=9

y=x+9

b—> 9

Slope: 1 (The y value increases the same amount as the x.)

please...... !!!!!!!

Answers

Answer:

Answer is 5

Step-by-step explanation:

I did math that's explaining.

Answer:

for 15 i think its B, 70 + 20w greater/equal to 150

Determine if the ordered pair (-4,3) is a solution of
4x - y = -13
Show ALL your work here

Answers

Answer:

This is NOT a solution

Step-by-step explanation:

If we plug in the coordinates (-4,3) into 4x-y our new equation is 4×-4-3 and if we solve this equation.... 4×-4=-16 and -16-3=-19 which does NOT equal to -13

giving brainliest !! *easy*

Answers

ih4egjhbsDLJFB sFHBseiuhFB skefByefusj:FKBs:iuyeGFBsjk :efge8FUIsj

Answer:

v = 49 pied square cm squared x 4 cm

Step-by-step explanation:

PLEASE ANSWER QUICKLY IT WOULD HELP A LOT <33

Answers

b for the first and a for the second

If angle 2 measures 75 degrees, how many degrees is angle 4?

Answers

150 bc you multiply by 2

Debra shopped on Monday and bought a pair of shoes that was 20% off its original price
of $60.
What was the discount amount?

Answers

Answer:12

Step-by-step explanation:

60 times 20 = 1200 1200 divided by 100 = 12

What does x=
Help quickly, please!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

see in the picture, we can see that SPRQ is a parallelogram

=> 70 = 14x

⇔ x = 70/14

⇔ x = 5

Step-by-step explanation:

Help with math thanks so much!!!!

Answers

I think the answer is 15

A fruit bowl contains apples, oranges, and bananas. The radius of one of the oranges is 1.45 inches. What is the approximate volume of the orange? Use 3.14 for .

Answers

Answer:

12.76 in³

Step-by-step explanation:

The volume of a sphere formula is V = (4/3)πr³.

Here we use 3.14 for π and 1.45 in for r.  We get:

V = (4/3)(3.14)(1.45 in)³ ≈ 12.76 in³

rearrange U=1/2KX2 make x the subject

Answers

= 1/2kx2

U = potential energy of a spring at a certain position

k = the spring constant, specific to the spring, with units N/m.

x = distance the spring is stretched or compressed away from equilibrium

Potential Energy: Elastic Formula Questions:

1) A spring, which has a spring constant k = 7.50 N/m, has been stretched 0.40 m from its equilibrium position. What is the potential energy now stored in the spring?

Answer: The spring has been stretched x = 0.40 m from equilibrium. The potential energy can be found using the formula:

U = 1/2kx2

U = 1/2(7.50 N/m)(0.40 m)2

U = 0.60 N∙m

U = 0.60 J

Math help plzzzzzzzxysgzfrhfu

Answers

Answer:

d is answer i 100% sure for first

Answer:

A

Step-by-step explanation:

What you think is fair punishment for a traitor of a country​

Answers

A fair punishment I believe is the person going to prison for their life or a death sentence.

Tyshdhhehdrhrhfhfurjrjd

Answers

Answer:

.....

Step-by-step explanation:

Answer: ....

Step by step explanation:

Convert to a mixed number and simplify 83/6 pls help pls give a explanation so i can understand pls thank you.

Answers

Your answer is 13 5/6

Triangle FGH is dilated by a scale factor of 5 to form triangle F'G'H'. Side F'G'
measures 15. What is the measure of side FG?

Answers

Answer:

The measure of side FG is 3.

Step-by-step explanation:

Dilation is a process in which the dimensions of a given shape or figure is either increased or decreased by a scale factor to produce its image.

From the given question,

scale factor = 5

measure of side F'G' = 15

Thus,

scale factor = [tex]\frac{measure of side F'G'}{measure of side FG}[/tex]

side F'G' = scale factor x side FG

⇒ 15 = 5 x side FG

So that,

side FG = [tex]\frac{15}{5}[/tex]

             = 3

The measure of side FG is 3.

A researcher has a colony of bongo spiders in his lab. There are 1200 adult spiders in the colony, and their weights are normally distributed with a mean of 11 grams and a standard deviation of 2 grams.
a) about what percent of spiders in the colony weigh between 7 grams and 13 grams?
b) about what percent of spiders in the colony weigh less than 9 grams?
c) What is the z-score of a spider in this colony that weighs 15 grams?
d) Approximately 68% of all the spider weights would occur between what two weights.
Approximately 68% of all the spider weights would occur between ______and _______grams.
e) What percent of spiders in the colony weigh more than 15 grams?
REAL ANSWERS ONLY!

Answers

300 and 12
Have a amazing day!

PLEASE ANSWER THE QUESTION CORRECTLY, I’LL GIVE YOU BRANLIEST! Please answer my other math questions if you solve this one, thanks.

Answers

Answer:

true

Step-by-step explanation:

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